JPH0348728U - - Google Patents
Info
- Publication number
- JPH0348728U JPH0348728U JP10901689U JP10901689U JPH0348728U JP H0348728 U JPH0348728 U JP H0348728U JP 10901689 U JP10901689 U JP 10901689U JP 10901689 U JP10901689 U JP 10901689U JP H0348728 U JPH0348728 U JP H0348728U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- air
- air flow
- flow meter
- bypass passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図、第２図、第３図は本案の空気流量計の
実施例を示す図、第４図は空気流量計の従来例（
特願昭５７−１７５１１）号を示す図、第５図は
空気流量計へ流入する空気流の流速分布図、第６
図、第７図は本案の変形例を示す図、第８図は第
２図に絞り弁を付加した実施例を示す図、第９図
は本案の変形例を示す図である。
１……空気流量計、２……バイパス通路入口、
３……バイパス通路、４……主流通路、５……バ
イパス通路出口、６……熱線プローブ、７……温
度プロープ、８……ベルマウス部、９……直管部
、１０……横通路、１１……円周通路、１２……
電子回路、１３……絞り弁、１４……絞り弁軸。
Figures 1, 2, and 3 are diagrams showing an embodiment of the air flow meter of the present invention, and Figure 4 is a conventional example of the air flow meter (
Figure 5 is a flow velocity distribution diagram of the air flow flowing into the air flow meter;
7 are views showing a modification of the present invention, FIG. 8 is a view showing an embodiment in which a throttle valve is added to FIG. 2, and FIG. 9 is a view showing a modification of the present invention. 1...Air flow meter, 2...Bypass passage inlet,
3... Bypass passage, 4... Mainstream passage, 5... Bypass passage outlet, 6... Hot wire probe, 7... Temperature probe, 8... Bell mouth section, 9... Straight pipe section, 10... Side passage , 11... circumferential passage, 12...
Electronic circuit, 13... Throttle valve, 14... Throttle valve shaft.
Claims (1)
記通路面積減少部付近に開口した出口部を有する
バイパス通路と、 (c) 前記バイパス通路は、空気通路面積が漸減
する部分と、この部分の通路中心とほぼ同軸で続
く直管部、一つ以上の曲り部、前記空気通路面積
減少部の外周に円周状に形成された通路と、 (d) 前記バイパス通路入口部は、前記空気通路
の空気流と平行に、バイパス通路出口部は、該空
気流と直角方向に開口され、 (e) 前記バイパス通路の前記直管部に突き出し
た支持部材を介して配置された熱線式空気流量計
と、 よりなることを特徴とする内燃機関用空気流量計
。[Claims for Utility Model Registration] (a) Air passage through which air supplied to the engine flows. (b) a bypass passage having an inlet opening in the center of the passage and an outlet opening near the passage area decreasing part; (c) the bypass passage having a part where the area of the air passage gradually decreases; (d) the bypass passage inlet portion includes a straight pipe portion that continues approximately coaxially with the passage center of the portion, one or more bent portions, and a passage formed in a circumferential shape around the outer periphery of the air passage area reduction portion; parallel to the air flow of the air passage, the bypass passage outlet section is opened in a direction perpendicular to the air flow; An air flow meter for an internal combustion engine, comprising: a flow meter; and an air flow meter for an internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10901689U JPH0348728U (en) | 1989-09-20 | 1989-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10901689U JPH0348728U (en) | 1989-09-20 | 1989-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348728U true JPH0348728U (en) | 1991-05-10 |
Family
ID=31657620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10901689U Pending JPH0348728U (en) | 1989-09-20 | 1989-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348728U (en) |
-
1989
- 1989-09-20 JP JP10901689U patent/JPH0348728U/ja active Pending
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